The Daleks' Master Plan is a 12 part epic Doctor Who adventure starring Billy Hartnell as the 1st Doctor. The story is dark, daring, unpredictable and has a twist hidden round every single corner. But the 7th part of the epic is none of those things because it aired on Christmas Day.
The story takes a break here. Instead we see the Doctor with companion Steven and hanger-on Sara arrive outside a police station where the TARDIS is mistaken for an actual police box. There's a bit of farce as the trio try to get back inside it and leave.
Then they arrive on a film set and... God only knows what the hell happens then! There's stuff happening and people doing things and lots of running around with words accompanying the action on screen akin to the silent films of old.
At the end the group are back on the TARDIS and the Doctor breaks the fourth wall by pouring out drinks for everyone and wishing a "Merry Christmas to all of you at home!"
That done, it's off to the next part of the story. The Daleks and Mavic Chen aren't done with our heroes yet – There's still 5 more episodes to go!